<template>
  <div>
    <div>
      <tiny-button @click="loadData">加载数据</tiny-button>
    </div>
    <br />
    <tiny-grid :data="tableData" show-footer :footer-method="footerMethod" border>
      <tiny-grid-column type="index" width="60"></tiny-grid-column>
      <tiny-grid-column type="selection" width="60"></tiny-grid-column>
      <tiny-grid-column field="name" title="公司名称"></tiny-grid-column>
      <tiny-grid-column field="employees" title="员工数"></tiny-grid-column>
      <tiny-grid-column field="createdDate" title="创建日期"></tiny-grid-column>
      <tiny-grid-column field="city" title="城市"></tiny-grid-column>
    </tiny-grid>
  </div>
</template>

<script setup lang="jsx">
import { ref } from 'vue'
import { TinyGrid, TinyGridColumn, TinyButton } from '@opentiny/vue'

const tableData = ref([])

function loadData() {
  tableData.value = [
    {
      id: '0',
      name: 'GFD 科技 YX 公司',
      city: '福州',
      employees: 800,
      createdDate: '2014-04-30 00:56:00'
    },
    {
      id: '2',
      name: 'WWW 科技 YX 公司',
      city: '深圳',
      employees: 300,
      createdDate: '2016-07-08 12:36:22'
    },
    {
      id: '3',
      name: 'RFV 有限责任公司',
      city: '中山',
      employees: 1300,
      createdDate: '2014-02-14 14:14:14'
    },
    {
      id: '4',
      name: 'TGB 科技 YX 公司',
      city: '龙岩',
      employees: 360,
      createdDate: '2013-01-13 13:13:13'
    },
    {
      id: '5',
      name: 'YHN 科技 YX 公司',
      city: '韶关',
      employees: 810,
      createdDate: '2012-12-12 12:12:12'
    },
    {
      id: '6',
      name: 'WSX 科技 YX 公司',
      city: '黄冈',
      employees: 800,
      createdDate: '2011-11-11 11:11:11'
    },
    {
      id: '7',
      name: 'KBG 物业 YX 公司',
      city: '赤壁',
      employees: 400,
      createdDate: '2016-04-30 23:56:00'
    },
    {
      id: '8',
      name: '深圳市福德宝网络技术 YX 公司',
      city: '厦门',
      employees: 540,
      createdDate: '2016-06-03 13:53:25'
    }
  ]
}

function footerMethod({ columns, data }) {
  if (data.length === 0) {
    return [
      ['平均', '', '', 0],
      ['和值', '', '', 0]
    ]
  }

  return [
    columns.map((column, columnIndex) => {
      if (columnIndex === 0) {
        return '平均'
      }

      if (column.property === 'employees') {
        return Math.floor(data.map((item) => item[column.property]).reduce((acc, item) => acc + item) / data.length)
      }

      return null
    }),
    columns.map((column, columnIndex) => {
      if (columnIndex === 0) {
        return '和值'
      }

      if (column.property === 'employees') {
        return data.map((item) => item[column.property]).reduce((acc, item) => acc + item)
      }

      return null
    })
  ]
}
</script>
